Maximal subgroups of nontorsion Grigorchuk–Gupta–Sidki groups
Maximal subgroups of nontorsion Grigorchuk–Gupta–Sidki groups
Abstract A Grigorchuk–Gupta–Sidki (GGS)-group is a subgroup of the automorphism group of the p -regular rooted tree for an odd prime p , generated by one rooted automorphism and one directed automorphism. Pervova proved that all torsion GGS-groups do not have maximal subgroups of infinite index. Here, we extend the …